Log-skidding machine.



No. a'75,096. PATENTE; Dm 31, 1907.

J. R. MCGIFFERT,

LOG SKIDDING MACHINE.

APPLICATION FILED DEO.30, 1904.

2 SHEETS-SHEET 1 25 /A/ LEA/TM: uw 4 J( ff P176 0 @E www@ 1 soap teu r is. il

JOHN n, ircoirinn'r, or nULUTii, MINNESOTA, AssioNoR ro oLYnE ieoN WORKS, or

` DutUTn, MiNNnsorA, A oonronATroN or MINNESOTA.

aoeerzrnnrns Meurtres.

rio. evaoec.

pecication of Letters fatent. Patented Dec. 3 l 1907..

Application tiled December 30. 19011. Serial No. 238,979-

contemplated applying,- that principle so as'd to disti. quish. it from other inventions.

u en relates to machines Yfor slriddinglogs, its object beingto ellect such skiddinpY in an ellicient and economical manner.

The sai invention consists of means hereinciter il:illy described and particularly set forth in `.e claims.

The missed drawings and the following descrip. on set forth 1n detail certain mechanis/*n for carrjfing out the obiect of my inn vent'ion; vtbe disclosed means however, constitute but one of various mechanical forms in which tlie principle of the invention may be used.

ln said annexed drawings: Figure l, rep resents the side-,elevation ol a device eml'iodying .my invention. 2, represents a top plan view of the same, and Fig. 3, an end elevation the automobile mechanism boingl omitted "i i' the salie of clearness.

`The i i ne illustrated in the drawings is ,i travel upon a rail-road track and embodies a car-bodv A, provided-with front and rear tri il; upon the middle portion boiler C, which supplies of the ear-body is steam io. 4 these engin' drives two cable-drums E lf/ and suital clutch. 'mechanism is provided (notjspecincally illustrated) whereby 'each oi! these drums may be driven independently oi0V the other. The clutch mechanism isalso vso arranged yvitlrreference to the engines,

:m hoisting engines D D; each otr mechanism (not shown) is also provided for throwing the shafts c e, into and out of gear with the engine. lt will therefore be seen that the car is rendered automobile; the character of the automobile mechanism may be any of many well known formsgand in itself does not term a part of my invention.

At each end of the car-body is ixedly secured a mast or derricl: frame F, preferably constructed as illustrated; of structural steel.

, in the upper portion of each mast are jour naled upon parallel aires, substantielly ver tical, two oppositely disposed sets of pulleys ff andf j', 'forming two pairs of oppositely disposed pulleys, each pair consisting of a pulleyf and a pulleyj. Around these ulleys or drums are respectively wound s idding-cables eier. The cables on the drums at one end of .the machine pass ',between the oppositely disposed pair i oi pulleys, supported upon the mast at the corresponding end of the machine, as .shown. Cable c, passes around one of the'two upper ypulleys j, and the other cable e5, passes around one of the lower pulleys f, and it will be seen that each cable may be caused to pass laterally from either side of the machine and still engage a guiding; pulley. The end of each cable is provided with a suitable grip ping: device F', which may be caused to grip the end the log 'llwo additional Swinging pulleys f2 and f2 are provided upon each .mast to properly guide the cables on to pulleysjf and f2.

ln operatinpr the above described machine it will be seen that by virtue of the arrange ment oi' the ulleys described, a cable may be run latere ly lfrom the mast and out from dil'erent ways simultaneously. The Inachino hence so constructed as to impart to it a very capacity for skidding logs. lli/hen operated as above described, the ma chine draws in the logs so as to bring them along the side of the track but in a position substantially perpendicular thereto. In order however, to place the logs in the most advantageous manner for the operation of a loading machine which handles and loads the logs after having been skidded, it is nec essary to place them so as to lie in piles parallel with the track and as close thereto as is feasible. To effect this purpose the skidding cables are provided at'opposite ends of the machine, as shown and described, whereby a vfeet are not in use, they are swung upwardly and laterally and attached to chains g, whih hold them in such upwardly swung position, as will be readily understood, and as shown in dotted lines in Fig. 3. These chains are also attached to the feet when the latter are in use, so as to limit their inward movement, suitable means, such as a hook, secured to each foot, being provided, whereby different links of each chain may 'be attached, as will be readily understood. By means of this limitation, the feet are prevented from working inwardly when the car body is tilted and holding such body in the tiltedposition.

Other modes of applying the principle of my vinvention may e employed instead of the one explained, change eing made as regards the mechanism herein disclosed provided the means stated by any one of the following claims or the equivalent of such stated means be employed.

I therefore particularly point out and distinctly claim a's my invention- Y 1. In a log skiddin' machine, the combi-A nation of a car movazble upon a track, two masts supported upon opposite ends of said car, pulleys mounted in said masts, ,two cables passing around the pulleys in cach mast, and means interposed between the two masts for winding-in each of the twoy cables supported upon each mast independently of each other.

2. In a log skiddin umachine, the combination of a car'mova le along a track, two masts supported upon opposite ends of'said car, guiding means for two cables mounted in cach such mast, a cable guided by each of such guiding means and means intermediate the two masts for winding each cable independently of all the others.

3. In a log-skidding machine, the combination of a base; a mast supported thereon; four pulleys mounted upon said mast in opposmoes sitely disposed pairs; two cables, one between cach two oppositely disposed pulleys; and means for operatin said cables.

4. In a log-skid ing machine, the combination of a base; a derrick-framesupported thereon; four pulleys mounted upon such frame in oppositely disposed pairs having parallel axes; a cable passing between each two oppositely disposed pulleys; and means for windin in said cables.

5. In a og skidding machine, the combination of a car movable along a track, two masts supported upon opposite ends of said car, two oppositely disposed sets of pulleys mounted u on each mast, a pair of cables guided by t e ulleys upon each mast,and4

means for win in -in said cable.

6. In a log ski din machine, the combinationof a car mova le along a track, two masts supported upon opposite ends offsaid car, four pulleys mounted upon each mast in oppositely disposed pairs having parallel' axes, a cable passing between each two oppo, sitely disposed pulleys, and means for winding-in said cables. .l

7. In a log skiddin machine, the combination of a car mova le along a track, twol masts supported upon'op osite ends of said car, four pulleys mounte upon each mast, and in o positel disposed pairs vhavin parallel axe a cab e passing between eac two oppositely dis osed pulleys, and means for windingsin eac of the others.

8. In a log skiddin machine, the combimasts secured to said car and upon opposite ends thereof, cable` iding means mounted upon said masts, ca le-winding mechanism interposed between the two masts and means at each end of the car for engaging the trackbed for 'fixing the car relatively to said track.

9. In a logskiddin machine, the combination of' a car mova le along a track, two masts secured to said car and upon opposite ends thereof, cableiding means mounted upon said masts, ca le winding mechanism intermediate the tw masts, a pivoted foot on op osite sides of said car at each'end thereo adapted to swing downwardly to enage the track bed, and a chain for each such of sald cables independentlyf oot adapted to retain the same out of such engagement.

10. In a log-skidding machine, the combination with a base of a mast inde endently mounted u on the end thereof, an comprising inwar( ly and forwardly inclined side members and a cross bar, joining the up er ends of said members, and oppositely '1s.

orwardly inclined so as to apprpach each n a og skidding machine, -the combi-v 100 nation of a car mova le along a track, two

yifovmre'iiy inclined so es to approach each Y other et .their upper ends and pojeot beyond.

other et their nopeil ends and project beyond said bese, and a cross beam joining the upper seid bese, and across beam jeinine the upper i ends of said frames; cables guided in said ends of seid hannes, K(ind eppo'sitey disposed masts; `and mechanism interposed between puiieys eznried by the mest between the side the 'two masts for separately winding in seid 1E frames thereof. i 'i Cables. Y

12. in e iog-s'kidding machine, the eombi- Signed by nation of a base; en independent mest 1904. mounted upon each end thereof and eomprising triangular side frames inwardly and me, this 10th dey of December,

v `JOPUJ R. MCGIFFERT. Witnesses:

E. M. NoRL1NG, A. E. MERKEL. 

